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Why is PKCE needed?
PKCE provides dynamic client secrets, meaning your app’s client secrets can stay secret (even without a back end for your app). PKCE is better and more secure than the implicit flow (AKA the “token flow”). If you’re using the implicit flow, then you should switch to PKCE.
Which flow should be used for single page apps?
Authorization Code flow
In order for a single-page app to use the Authorization Code flow, it must be able to make a POST request to the authorization server. This means if the authorization server is on a different domain, the server will need to support the appropriate CORS headers.
What is single page application means?
The single page application is a web application or website that interacts with the user by dynamically rewriting the current page, rather than loading entire new pages from the server.
What is native platform?
The term native app development refers to building a mobile app exclusively for a single platform. The app is built with programming languages and tools that are specific to a single platform. Native apps are known to deliver exceptional user experience as they are generally high performance.
How does a single page application use PKCe?
Once done, the service gives back a client_id code, and optionally a client_secret. Single-page applications can’t safely store a client_secret, so they rely only on client_id and PKCE (more on this later). Next step: user visits the client, and clicks a link which takes it to the authorization server.
Why do we need PKCe flow in JavaScript?
In particular, JavaScript did not have access to browser history or local storage. Also, most providers did not allow cross-site POST requests to a /token endpoint, which is a requirement of the Authorization Code flow. Here’s what the Implicit flow looks like:
How does the code challenge work in PKCe?
That is no longer the case. PKCE works by having the app generate a random value at the beginning of the flow called a Code Verifier. The app hashes the Code Verifier and the result is called the Code Challenge.
What are the benefits of PKCe for apps?
And while no magic is involved in this process, PKCE does provide some great security benefits for your apps, especially if your app runs on a public client. PKCE provides dynamic client secrets, meaning your app’s client secrets can stay secret (even without a back end for your app).